The testing of a data fusing system presents a conceptual challenge. What seem to be simple and direct approaches to testing may be tantamount to making a judgment on the basis of the flip of a coin. In this paper we dissect the intelligence system and identify precisely the role of the fusion engine in it, with particular emphasis on distinguishing between the deterministic parts of the system and those that are sources of noise or randomness. It is emphasized that the role of the fusion...

Topics: DTIC Archive, DeWitt, R N, PACIFIC-SIERRA RESEARCH CORP ARLINGTON VA, *PROBABILITY DISTRIBUTION...

This research measured individual and collective tactical performance in a series of engagement simulation exercises against novice opponents and with the same mission and terrain. The effects of engagement simulation training have been difficult to measure since training normally has been conducted with varying missions and terrain against a constantly improving opponent. The results of this research indicate that collective tactical performance is improved by repeated engagement simulation...

Topics: DTIC Archive, Sulzen, Robert H, ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES...

The operation and maintenance scope for a biogas system includes all work and inspections needed to ensure smooth functioning and longevity of service. There are general rules that apply to the entire biogas system and aim at enhancing and maintaining the functioning of the system. A field study was carried out during the year 2006 to 2008 on Biogas plants covering 11 districts of Chhattisgarh plains. The knowhow on biogas technology, maintenance practices and dung fed (%) were varying from...

Topics: Anaerobic Digestion, Biogas, Biomass, Chi- Square Test, Feeding Practices, Manure, Methane &...

We propose an algorithm modifying a popular exact conditional test involving the goodness-of-fit of contingency tables. This study focuses on improving the efficiency of Markov chain Monte Carlo (MCMC) when sampling three-way contingency tables--defined as log-linear models with three discrete random categorical variables consisting of finite levels--under the no-three-way interaction model. Standard to MCMC, we approximate the null distribution by sampling tables from the conditional...

Topics: Categorical Data Analysis, Markov-chain Monte Carlo, Chi-Square Test for Independence,...

The purpose of this research was to determine if a spatialized headphone display would improve users' recognition accuracy when listening to more than two overlapping messages. This type of task has numerous applications in a variety of different military settings, such as aviation communications and combat information centers. Two experiments were conducted in the Advanced Auditory Displays Laboratory at the Naval Postgraduate School. The first experiment was a pilot study which was designed...

Topics: DTIC Archive, Campbell, James R, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *SPEECH RECOGNITION,...

An important problem confronting managers and accountants is design of computer simulation experiments in settings where the assumptions usually made by statisticians are violated. One approach to this problem is to run the simulation 'until the budgeted money runs out' and hope for the best analysis of the simulated results. The present paper shows how, instead, to rationally design and analyze a computer simulation under minimal assumptions, using the Bishop-Dudewicz HANOVA...

Topics: DTIC Archive, Dudewicz, Edward J., OHIO STATE UNIV COLUMBUS DEPT OF STATISTICS, *ALGORITHMS,...

Power algorithms for several common statistical tests are presented. In experimental design of operational tests and evaluations the selection of design parameters so as to attain an experiment with desired power is a difficult and important problem. An interactive computer program is presented which uses the power algorithms for several tests and creates graphical presentations which can be used to assist decision makers in statistical design. Several common tests and associated parameters...

Topics: DTIC Archive, Hur, Seong P, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *ALGORITHMS, *STATISTICAL TESTS,...

Research supported in the period of the grant produced significant results of use in the areas of reliability assessment, design of systems for dependabilities, Markov chain analysis, goodness-of-fit tests, and censored and truncated data analysis. The PI effectively disseminated his results through invited talks at significant national meetings and through published journals.

Topics: DTIC Archive, Doss, Hani, FLORIDA STATE UNIV TALLAHASSEE DEPT OF STATISTICS, *STATISTICAL...

Hotellings T squared and related charts are studied in monitoring the means of a multidimensional production process. The T squared chart is shown to be optimal in a class of procedures in that it signals more quickly than other procedures in the class when the process is not in control. Nonstandard properties of the distributions of run lengths of these charts are studied when (i) certain parameters are estimated in a base and modified procedures are followed using these estimates, (ii) the...

Topics: DTIC Archive, Jensen,D R, VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG, *STATISTICAL TESTS,...

Recently a new technique for characterizing the noise processes affecting oscillators was introduced [1] [2]. This technique minimizes the difference between the estimates of several different variances and their values as predicted by the standard power law model of noise. The method outlined in this paper makes two significant advancements: it uses exclusively time domain variances so that deterministic parameters such as linear frequency drift may be estimated, and it correctly fits the...

Topics: DTIC Archive, STANFORD UNIV CA W W HANSEN LABS OF PHYSICS, *OSCILLATORS, *TIME INTERVALS, *NOISE...

Since the introduction of the ICBM into the SAC arsenal, numerous researchers have studied the missile operations career field. These studies have been primarily oriented toward the overall attitudes, morale, job satisfaction, and retention rates of Missile Combat Crew Members (MCCMs), both in general and in relation to a specific weapon system (i.e., Titan or Minuteman). The purpose of this study was to determine: (1) if MCCM attitudes differed among the nine missile wings, (2) if the...

Topics: DTIC Archive, Cancellieri, Robert, AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH SCHOOL...

When a random signal is sampled and digitally analyzed, the results of the analysis are estimates of the true parameters or statistics describing the random signal. In many cases there exists difficulty in assigning a level of confidence to such an estimate. That is, the estimate can never be said to equal the true parameter value, but can be said to lie within specified confidence limits, or error bars, with a given probability. The confidence limits are highly dependent upon the...

Topics: DTIC Archive, Record,H D, TRACOR INC AUSTIN TEX, *SONAR SOUND ANALYZERS, SIGNAL PROCESSING,...

This report deals with a computation of the first two moments of the output distribution of the adaptive line enhancer (ALE) detector. Its primary motivation is to provide a means of determining the detection characteristics of the integrated spectral output. Previous results have relied on assumptions regarding the output statistics themselves; i.e., that they be chi-square distributions. In this work, only two assumptions are made: that the input to the detector be a sinusoid in white...

Topics: DTIC Archive, Shensa, M, HYDROTRONICS INC SAN DIEGO CA, *SIGNAL PROCESSING, *ELECTRIC FILTERS,...

This report develops methodology for acceptance criteria for target dispersion characteristics of Armor Piercing Discarding Sabot (APDS) rounds. The distribution of observed circular probable errors of the reference lot of Cartridge, 105mm: APDS-T M392 is obtained and is used to derive the operating characterisics (OC) curves of several acceptance plans. Procedures for developing acceptance plans and their associated O-C curves are given, and several plans are presented. (Author)

Topics: DTIC Archive, Hopkins,Frank C, ARMY MATERIEL SYSTEMS ANALYSIS ACTIVITY ABERDEEN PROVING GROUND MD,...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

This study was designed to determine if the intravenous use of meperidine intraoperatively decreased the incidence of post-operative shivering in patients who were anesthetized using the Ohmeda UPAC drawover vaporizer. It determined if the incidence of postoperative shivering was greater in patients who were anesthetized using the UPAC than those who were anesthetized using conventional anesthesia machines. This was a quasi-experimental, prospective, double-blinded, 2x2 randomized study design....

Topics: DTIC Archive, Wilcox, Ryan J, TEXAS UNIV HEALTH SCIENCE CENTER AT HOUSTON, *ANESTHESIA,...

In September 2008, the General Leonard Wood Army Community Hospital (GLWACH) Pharmacy Department executed an initiative to reduce the utilization of retail pharmacy services. This initiative was implemented due to the increase in retail prescription drug spending that prompted the Government Accountability Office to recommend individual Military Treatment Facilities (MTF) identify ways to reduce local retail pharmacy spending. The primary objective of this study was to determine if the GLWACH...

Topics: DTIC Archive, LEONARD WOOD ARMY COMMUNITY HOSPITAL FORT LEONARD WOOD MO, *INTERVENTION, *COSTS,...

The primary purpose of this study is to investigate the robustness characteristics of some of the current methodologies for the analysis of contingency tables as the size of the table increases. A Monte Carlo simulation provides estimates of exact significance levels for comparison with nominal levels. An extensive array of tables, probability designs, and sample sizes are used. Three asymptotic chi-squared statistics are evaluated: the Pearson statistic, the Kullback minimum discrimination...

Topics: DTIC Archive, Kolb,Rickey Arthur, ARMY MILITARY PERSONNEL CENTER ALEXANDRIA VA, *METHODOLOGY,...

The false alarm and detection probabilities for a multi-pulse signal subject to partially correlated fading, in the presence of Gaussian noise of unknown level, are derived in closed form. The number K of signal pulses, as well as the number L of noise-only pulses used to estimate the noise-only pulses used to estimate the noise background power level, are arbitrary. The power-fading is characterized by chi-squared distribution with 2m degrees of freedom and a normalized set of covariance...

Topics: DTIC Archive, Nuttall, Albert H, NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB,...

A model of emitter tip erosion has been developed that correlates with performance degradation. The erosion is caused by back bombardment of the emitter by negative ions produced from the break up of slow droplets as a result of collisions with fast ions. Calculations are made assuming the droplets are all the same size rather than using the distribution of droplet sizes actually observed. If at least one negative ion is produced at each ion/droplet collision the resulting sputtering date is...

Topics: DTIC Archive, Perel,Julius, PHRASOR TECHNOLOGY PASADENA CALIF, *EROSION, *EMITTERS, *THRUSTERS,...

Although accelerated temperature stressing of semiconductor devices is an accepted and widely employed technique for assessing the reliability of semiconductor devices, it appears that a statistical error analysis of this procedure is not available. The purpose of this work is to partially remedy this deficiency. The goal of this program is easily stated: A number of devices taken from a distribution are operated at several elevated temperatures to induce failure in all devices within a...

Topics: DTIC Archive, Johnson,Walter A, AEROSPACE CORP EL SEGUNDO CA ELECTRONICS RESEARCH LAB,...

Monte Carlo methods are used to compare the methods of maximum likelihood and least squares to estimate a cumulative distribution function. When the probabilistic model used is correct or nearly correct, the two methods produce similar results with the MLE usually slightly superior. When an incorrect model is used, or when the data is contaminated, the least squares technique often gives substantially superior results. (Author)

Topics: DTIC Archive, Somerville,Paul N, UNIVERSITY OF CENTRAL FLORIDA ORLANDO DEPT OF MATHEMATICS AND...

Hotellings T squared and related charts are studied in monitoring the means of a multidimensional production process. The T squared chart is shown to be optimal in a class of procedures in that it signals more quickly than other procedures in the class when the process is not in control. Nonstandard properties of the distributions of run lengths of these charts are studied when (i) certain parameters are estimated in a base and modified procedures are followed using these estimates, (ii) the...

Topics: DTIC Archive, Jensen,D R, VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG, *STATISTICAL TESTS,...

The objective of this research was to gain a better understanding of how the adequacy of test and evaluation (T and E) data affects defense system acquisition review council (DSARC) decisions. Specifically, the study focused on the adequacy of the T and E data presented at milestone reviews as a possible reason for conditional decisions. Conditional decisions are those that nominally approve entry into the next phase of acquisition, but also impose restrictions on the pace of development or...

Topics: DTIC Archive, BOOZ-ALLEN AND HAMILTON INC BETHESDA MD, *MANAGEMENT PLANNING AND CONTROL, TEST AND...

This paper is concerned mainly with tests of goodness of fit that a random sample x sub 1, x sub 2,..., x sub n is from a completely specified distribution function. The test is based on the integral of the weighted squared modulus of the difference between sample and population characteristic functions. This integral expression is equivalent to the integral of the squared difference between a density and its Parzen kernel estimate. The asymptotic null distribution of the statistic is that of...

Topics: DTIC Archive, Paulson, A S, RENSSELAER POLYTECHNIC INST TROY NY SCHOOL OF MANAGEMENT, *MULTIVARIATE...

A quick and effective method for determining from three frequency decibles the mean of a chi square distribution and an associated linear transform has been presented. The original purpose of the calculations was to allow creation of suitably distributed OTHR frequencies to be obtained, but the general principles used are applicable in other areas either in whole or in part. Errors have been estimated and have been shown to be greatest for small values of the mean, e.g. possibly as high as 20...

Topics: DTIC Archive, McMillan, B K, DEPARTMENT OF DEFENCE CANBERRA (AUSTRALIA) CENTRAL STUDIES BRANCH,...

The patient satisfaction survey (PSS) of the impatient area at National Naval Medical Center has a low rate of response by patients. Historically less than six percent of the patient population responds to the survey. A review of the literature documents that a low response rate produces a biased survey which will not be useful for management decision making or for a legitimate quality assessment program. The purpose of this paper is to describe a study which implements a staff education...

Topics: DTIC Archive, Benninger, Charles O, ACADEMY OF HEALTH SCIENCES (ARMY) FORT SAM HOUSTON TX HEALTH...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

Studies note musculoskeletal (MS) symptoms in pilots flying high-G aircraft, impacting mission readiness with concerns for chronic disability. We hypothesized similar prevalence of MS symptoms in student pilots, but we could not find studies that addressed this population. Focused MS strength training and alternative medical treatments would significantly benefit our pilots. Instructor pilots benefitted from osteopathic manipulation at Laughlin Air Force Base, but student pilots were not seen....

Topics: DTIC Archive, VanValkenburg,Kevin R, USAF School of Aerospace Medicine/FEE Wright-Patterson AFB...

The purpose of this analysis is to use maintenance repair time data collected from one-quarter truck in the exponential, Weibull, gamma, truncated normal, and lognormal distribution models to determine the best model for these data based on Messrs. Blanchard and Lowery's theory. (Author)

Topics: DTIC Archive, Jones,Van R, ARMY MATERIEL SYSTEMS ANALYSIS ACTIVITY ABERDEEN PROVING GROUND MD,...

Purposes were to describe nurse case management effect on a weight manager program, compare weight and body fat changes in clients receiving usual services vs. enhanced services, and describe goal attainment. Using a quasi-experimental design, experimental group received case management and military weight program; the control group, military weight program. Data analysis employed paired t-test, two sample t-test, and chi-square analysis. Paired t-tests indicated significant weight loss in...

Topics: DTIC Archive, Prince, Melanie A., AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH, *AIR FORCE,...

For independent chi-square variables x squared sub m and x squared sub n with m and n degrees of freedom, respectively, we consider the quadratic form where the positive ci are distinct. This paper gives exact finite expressions for the distribution of Q in terms of available functions such as the distribution function of chi-square random variables, modified Bessel Functions, Dawson's integral. These formulas are useful for checking the accuracy of approximations and tables of the distribution...

Topics: DTIC Archive, Bock, Mary E, STANFORD UNIV CA DEPT OF STATISTICS, *RANDOM VARIABLES, *DISTRIBUTION...

Many publications resulted from this contract, and this report contains a list of these. The publications represent the work on this contract. Keywords: Bibliographies; Normal distributions; Chi square method; Tolerance limits; T distributions; Exponential distributions.

Topics: DTIC Archive, Owen, Donald B, SOUTHERN METHODIST UNIV DALLAS TX DEPT OF STATISTICAL SCIENCE,...

The present study was conducted for probability analysis of previous 20 years (1993-2012) with the prime objective for the prediction of annual maximum rainfall of one to five consecutive days of Ambedker Nagar (Tanda). The observed values were computed by wei-bull’s formula. The maximum rainfall values were estimated by proposed predicted models viz. Gumbel, Log Pearson Type III Log Normal and Gamma. The predicted and observed values were also established. The rainfall data has been in the...

Topics: Log Pearson Type III Log, prime objective & Chi-square test

In this paper, we show that the Lagrange multiplier test, the likelihood ratio test and the Wald test are monotonic functions of each other. This implies that they have the same power characteristics. If the critical values are specified such as to equate the probabilities of type I error, the probabilities of type II error will be equal as well, and conflicting results are impossible. The critical values of the three tests are related to each other by the same monotonic functions as the three...

Topics: DTIC Archive, Kohler,Daniel F, RAND CORP SANTA MONICA CA, *Linear regression analysis, *Parametric...

Savin (1976) and Berndt and Savin (1977), among others, have pointed out that an inequality relation exists between the Lagrange Multiplier Test, the Wald Test, and the Likelihood Ratio Test. However, since all tests converge to the same limiting Chi-square distribution they are usually compared against the same critical value. This raises the possibility of conflicting conclusions from the three tests. Kohler (1979) and Vandaele (1981) have shown that the three tests are monotonic functions of...

Topics: DTIC Archive, Kohler,Daniel F, RAND CORP SANTA MONICA CA, *Statistical tests, *Lagrangian...

For parametric mixture distributions indexed by say a univariate parameter Theta we investigate estimation of g theta under squared error loss. First we propose a method for uniformly improving upon an unbaised estimator of g theta. Second we characterize Bayes estimators of g theta and give a simple complete class theorem. Finally we study the performance of empirical Bayes rules generated using the EM algorithm. Application in the context of the noncentral chi-square distribution provides...

Topics: DTIC Archive, Gelfand,Alan E, STANFORD UNIV CA DEPT OF STATISTICS, *STATISTICAL DISTRIBUTIONS, *CHI...

Topics: DTIC Archive, GENERAL ACCOUNTING OFFICE WASHINGTON DC GENERAL GOVERNMENT DIV, *BANKING, ECONOMIC...

Kolmogorov-Simirnov and the Kuiper goodness-of-fit tests are studied for the Cauchy distribution with the unknown location and scale parameters. Monte Carlo simulation studies were performed using maximum likelihood estimation to calculate the critical values for standard Kolmogorov-Simirnov and the Kuiper tests. Then a reflection technique is introduced and the critical value tables are calculated for both the Reflected Kolmogorov-Simirnov and the Reflected Kuiper tests. Several sequential...

Topics: DTIC Archive, Oenen, Bora H, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING,...

The main focus of Marine Corps Task Analysis (TA) is upon occupational fields (OFs). Data for analysis in the TA process are gathered by the administration of a Task Analysis Inventory to a sample of Marines in the OF being studied. It has been the policy of the Office of Manpower Utilization, HQMC (OMU), which conducts the TA program, to administer a task inventory to the largest possible sample in an OF. The specific objective of the research described in this report was to develop guidelines...

Topics: DTIC Archive, Farrell,William T, Stone,C Harold, Yoder,Dale, CALIFORNIA STATE UNIV LOS ANGELES,...

Likelihood ratio statistics for (i) testing the homogeneity of a collection of multinomial parameters against the alternative which accounts for the restriction that those parameters are starshaped (cf. Shaked, Ann. Statist. (1979)), and for (ii) testing the null hypothesis that this parameter vector is starshaped are considered. For both tests the asymptotic distribution of the test statistic under the null hypothesis is a version of the chi-bar-square distribution. Analogous tests on a...

Topics: DTIC Archive, Dykstra,Richard L, MISSOURI UNIV-COLUMBIA DEPT OF STATISTICS, *MULTIVARIATE ANALYSIS,...

For many optimization problems approximate or near-optimal solutions are the only practical solutions available. This paper identifies and compares some procedures which use independent near-optimal solutions to determine a confidence limit such that, with a user specified confidence, the global optimum is between the best near-optimal solution and the confidence limit. A computer implementation of the procedures is available from the authors. (Author)

Topics: DTIC Archive, Sielken,Robert L , Jr, TEXAS A AND M UNIV COLLEGE STATION INST OF STATISTICS,...

The status of resources and training system (SORTS) is a process that measures the health of units and wings in day-to-day preparedness and the ability to execute a major theater war or other scenario envisioned in the national security strategy. With talk of the current reporting system not accurately reflecting units readiness, it is time to evaluate the system to identify key problems and re-design the process to better reflect units capabilities. The objective of this thesis was to inform...

Topics: DTIC Archive, Jordan, Tia A, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING...

Using already available data, a backscattering coefficient generator (BCG) for several types of terrain and measurement conditions is developed. The types of terrain are: (1) soils and rocks, (2) trees, (3) grasses, (4) shrubs, (5) short vegetation, (6) roads, (7) urban areas, (8) dry snow, and (9) wet snow. These data sets typically cover incidence angles ranging between 0 and 80 degrees where 0 is normal to the terrain. Measurement conditions are defined by: (1) incidence angle, (2) wave...

Topics: DTIC Archive, Mediavilla, Ricardo, AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF...

Based on an exponential integral formula recently derived by the authors, a substitution method is presented for determining a probability density function and moments for a useful class of (0, infinity) exponentials frequently encountered in signal processing. The generalization of the method is elaborated to account for models of (-infinity, infinity) exponentials. The generalized density function and moments relation are given as integral formulas specifically calculated from their...

Topics: DTIC Archive, O'Brien, F. J., Jr., NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI, *SIGNAL...

The purpose of this research was to analyze shelf space allocation at the Wright-Patterson Air Force Base Commissary. THe commissary had a product in stock goal of 99 percent, which was not being met for all products. The research addressed two different methods of shelf space allocation, within existing constraints of product mix and shelf space available, to limit the out-of-stock situations. The study was accomplished by an experiment that used an initial data collection period to establish...

Topics: DTIC Archive, Peterson, Michael J, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF SYSTEMS...

When computing elliptic error probable (EEP) ellipse axes for location error with a given confidence level, the chi square statistics tables are used if the standard deviation is known. If the standard deviation is estimated from the data, then the F-statistics tables are used. This memo examined the error caused by use of the chi square statistics tables in place of the F-statistics tables. This error is quantified in terms of the number of LOBs used to obtain the location estimate. Keywords:...

Topics: DTIC Archive, Rennie, Michael W, JET PROPULSION LAB PASADENA CA, *ELLIPSES,...